Chemical pipeline gate valve structure

The utility model discloses a chemical pipeline gate valve structure which comprises a gate valve body and a gate valve plate, a drainage section connecting seat and a water inlet section connecting seat are arranged at the two ends of the gate valve body respectively, and a rotary connecting assembly is arranged at one end of the drainage section connecting seat; the rotating connecting assembly comprises an outer rotating cylinder, a sealing bearing part and a hollow connecting shaft, the sealing bearing part is arranged at a through hole of the outer rotating cylinder, the hollow connecting shaft is fixedly connected with an inner ring of the sealing bearing part, and an inner hole of the outer rotating cylinder is provided with an inner thread; the outer rotating cylinder is arranged at the drainage section connecting seat of the gate valve body, and the bearing piece, the hollow connecting shaft, the shifting connecting rod and the double-layer sealing gasket are sealed in the outer rotating cylinder, so